1
|
Kamada H, Emura K, Yamamoto R, Kawahara K, Uto S, Minami T, Ito S, Matsumoto KI, Okuda-Ashitaka E. Hypersensitivity of myelinated A-fibers via toll-like receptor 5 promotes mechanical allodynia in tenascin-X-deficient mice associated with Ehlers-Danlos syndrome. Sci Rep 2023; 13:18490. [PMID: 37898719 PMCID: PMC10613304 DOI: 10.1038/s41598-023-45638-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 10/21/2023] [Indexed: 10/30/2023] Open
Abstract
Deficiency of an extracellular matrix glycoprotein tenascin-X (TNX) leads to a human heritable disorder Ehlers-Danlos syndrome, and TNX-deficient patients complain of chronic joint pain, myalgia, paresthesia, and axonal polyneuropathy. We previously reported that TNX-deficient (Tnxb-/-) mice exhibit mechanical allodynia and hypersensitivity to myelinated A-fibers. Here, we investigated the pain response of Tnxb-/- mice using pharmacological silencing of A-fibers with co-injection of N-(2,6-Dimethylphenylcarbamoylmethyl) triethylammonium bromide (QX-314), a membrane-impermeable lidocaine analog, plus flagellin, a toll-like receptor 5 (TLR5) ligand. Intraplantar co-injection of QX-314 and flagellin significantly increased the paw withdrawal threshold to transcutaneous sine wave stimuli at frequencies of 250 Hz (Aδ fiber responses) and 2000 Hz (Aβ fiber responses), but not 5 Hz (C fiber responses) in wild-type mice. The QX-314 plus flagellin-induced silencing of Aδ- and Aβ-fibers was also observed in Tnxb-/- mice. Co-injection of QX-314 and flagellin significantly inhibited the mechanical allodynia and neuronal activation of the spinal dorsal horn in Tnxb-/- mice. Interestingly, QX-314 alone inhibited the mechanical allodynia in Tnxb-/- mice, and it increased the paw withdrawal threshold to stimuli at frequencies of 250 Hz and 2000 Hz in Tnxb-/- mice, but not in wild-type mice. The inhibition of mechanical allodynia induced by QX-314 alone was blocked by intraplantar injection of a TLR5 antagonist TH1020 in Tnxb-/- mice. These results suggest that mechanical allodynia due to TNX deficiency is caused by the hypersensitivity of Aδ- and Aβ-fibers, and it is induced by constitutive activation of TLR5.
Collapse
Affiliation(s)
- Hiroki Kamada
- Department of Biomedical Engineering, Osaka Institute of Technology, Osaka, 535-8585, Japan
| | - Kousuke Emura
- Department of Biomedical Engineering, Osaka Institute of Technology, Osaka, 535-8585, Japan
| | - Rikuto Yamamoto
- Department of Biomedical Engineering, Osaka Institute of Technology, Osaka, 535-8585, Japan
| | - Koichi Kawahara
- Department of Biomedical Engineering, Osaka Institute of Technology, Osaka, 535-8585, Japan
| | - Sadahito Uto
- Department of Biomedical Engineering, Osaka Institute of Technology, Osaka, 535-8585, Japan
| | - Toshiaki Minami
- Department of Anesthesiology, Osaka Medical and Pharmaceutical University, Takatsuki, 569-8686, Japan
| | - Seiji Ito
- Department of Anesthesiology, Osaka Medical and Pharmaceutical University, Takatsuki, 569-8686, Japan
| | - Ken-Ichi Matsumoto
- Department of Biosignaling and Radioisotope Experiment, Interdisciplinary Center for Science Research, Head Office for Research and Academic Information, Shimane University, Izumo, 693-8501, Japan
| | - Emiko Okuda-Ashitaka
- Department of Biomedical Engineering, Osaka Institute of Technology, Osaka, 535-8585, Japan.
| |
Collapse
|
2
|
Kaneto K, Uto S. CO 2 Generation by Glucose and Derivatives Fuel Cells. CHEM LETT 2022. [DOI: 10.1246/cl.220293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Keiichi Kaneto
- Faculty of Engineering, Osaka Institute of Technology, 5-16-1, Ohmiya, Asahi-ku, Osaka, 535-8585, Japan
| | - Sadahito Uto
- Faculty of Engineering, Osaka Institute of Technology, 5-16-1, Ohmiya, Asahi-ku, Osaka, 535-8585, Japan
| |
Collapse
|
3
|
Affiliation(s)
- Keiichi Kaneto
- Faculty of Engineering, Osaka Institute of Technology, 5-16-1, Ohmiya, Asahi-ku, Osaka, 535-8585, Japan
| | - Sadahito Uto
- Faculty of Engineering, Osaka Institute of Technology, 5-16-1, Ohmiya, Asahi-ku, Osaka, 535-8585, Japan
| |
Collapse
|
4
|
Affiliation(s)
- Keiichi Kaneto
- Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Ohmiya, Asahi-ku, Osaka 535-8585, Japan
| | - Sadahito Uto
- Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Ohmiya, Asahi-ku, Osaka 535-8585, Japan
| |
Collapse
|
5
|
Affiliation(s)
- Keiichi Kaneto
- Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Ohmiya, Asahi-ku, Osaka 535-8585, Japan
| | - Sadahito Uto
- Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Ohmiya, Asahi-ku, Osaka 535-8585, Japan
| |
Collapse
|
6
|
Affiliation(s)
- Keiichi Kaneto
- Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Ohmiya, Asahi-ku, Osaka, 535-8585, Japan
| | - Sadahito Uto
- Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Ohmiya, Asahi-ku, Osaka, 535-8585, Japan
| |
Collapse
|
7
|
Affiliation(s)
- Keiichi Kaneto
- Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Ohmiya, Asahi-ku, Osaka 535-8585, Japan
| | - Mao Nishikawa
- Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Ohmiya, Asahi-ku, Osaka 535-8585, Japan
| | - Sadahito Uto
- Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Ohmiya, Asahi-ku, Osaka 535-8585, Japan
| |
Collapse
|
8
|
Affiliation(s)
- Keiichi Kaneto
- Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Ohmiya, Asahi-ku, Osaka 535-8585, Japan
| | - Mao Nishikawa
- Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Ohmiya, Asahi-ku, Osaka 535-8585, Japan
| | - Sadahito Uto
- Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Ohmiya, Asahi-ku, Osaka 535-8585, Japan
| | - Toshiyuki Osawa
- Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Ohmiya, Asahi-ku, Osaka 535-8585, Japan
| |
Collapse
|
9
|
Uto S, Kawakami K, Umena Y, Iwai M, Ikeuchi M, Shen JR, Kamiya N. Mutual relationships between structural and functional changes in a PsbM-deletion mutant of photosystem II. Faraday Discuss 2017; 198:107-120. [DOI: 10.1039/c6fd00213g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Photosystem II (PSII) is a membrane protein complex that performs light-induced electron transfer and oxygen evolution from water. PSII consists of 19 or 20 subunits in its crystal form and binds various cofactors such as chlorophyll a, plastoquinone, carotenoid, and lipids. After initial light excitation, the charge separation produces an electron, which is transferred to a plastoquinone molecule (QA) and then to another plastoquinone (QB). PsbM is a low-molecular-weight subunit with one transmembrane helix, and is located in the monomer–monomer interface of the PSII dimer. The function of PsbM has been reported to be stabilization of the PSII dimer and maintenance of electron transfer efficiency of PSII based on previous X-ray crystal structure analysis at a resolution of 4.2 Å. In order to elucidate the structure–function relationships of PsbM in detail, we improved the quality of PSII crystals from a PsbM-deleted mutant (ΔPsbM-PSII) of Thermosynechococcus elongatus, and succeeded in improving the diffraction quality to a resolution of 2.2 Å. X-ray crystal structure analysis of ΔPsbM-PSII showed that electron densities for the PsbM subunit and neighboring carotenoid and detergent molecules were absent in the monomer–monomer interface. The overall structure of ΔPsbM-PSII was similar to wild-type PSII, but the arrangement of the hydrophobic transmembrane subunits was significantly changed by the deletion of PsbM, resulting in a slight widening of the lipid hole involving QB. The lipid hole-widening further induced structural changes of the bicarbonate ion coordinated to the non-heme Fe(ii) atom and destabilized the polypeptide chains around the QB binding site located far from the position of PsbM. The fluorescence decay measurement indicated that the electron transfer rate from QA to QB was decreased in ΔPsbM-PSII compared with wild-type PSII. The functional change in electron transfer efficiency was fully interpreted based on structural changes caused by the deletion of the PsbM subunit.
Collapse
Affiliation(s)
- S. Uto
- Department of Chemistry
- Graduate School of Science
- Osaka City University
- Osaka
- Japan
| | - K. Kawakami
- The OCU Advanced Research Institute for Natural Science and Technology (OCARINA)
- Osaka City University
- Osaka
- Japan
| | - Y. Umena
- The OCU Advanced Research Institute for Natural Science and Technology (OCARINA)
- Osaka City University
- Osaka
- Japan
- JST-PRESTO
| | - M. Iwai
- Graduate School of Bioscience and Biotechnology
- Tokyo Institute of Technology
- Yokohama
- Japan
| | - M. Ikeuchi
- Department of Life Sciences (Biology)
- Graduate School of Arts and Science
- The University of Tokyo
- Tokyo
- Japan
| | - J.-R. Shen
- Research Institute for Interdisciplinary Science
- Okayama University
- Okayama
- Japan
| | - N. Kamiya
- Department of Chemistry
- Graduate School of Science
- Osaka City University
- Osaka
- Japan
| |
Collapse
|
10
|
Uto S, Kawakami K, Umena Y, Iwai M, Ikeuchi M, Shen JR, Kamiya N. Crystallization and structure analysis of a PsbM-deletion mutant of PSII. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311081256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
11
|
Yamasaki KI, Hayashi H, Nishiyama K, Kobayashi H, Uto S, Kondo H, Hashimoto S, Fujisato T. Control of myotube contraction using electrical pulse stimulation for bio-actuator. J Artif Organs 2009; 12:131-7. [DOI: 10.1007/s10047-009-0457-4] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2008] [Accepted: 04/04/2009] [Indexed: 11/30/2022]
|
12
|
Yoshino K, Nambu H, Oue T, Shimoda Y, Kawagishi Y, Nakayama K, Yablonskii S, Uto S, Ozaki M. Electrical, Optical, Electro-Optical and Electro-Mechanical Properties of Liquid Crystals in Freely Suspended Films and in Periodic Three-Dimensional Array of Nano-Scale Voids in Synthetic Opals. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/10587250008024832] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Katsumi Yoshino
- a Department of Electronic Engineering , Graduate School of Engineering, Osaka University , 2-1 Yamada-Oka, Suita, Osaka , 565-0871 , JAPAN
| | - Hidetaka Nambu
- a Department of Electronic Engineering , Graduate School of Engineering, Osaka University , 2-1 Yamada-Oka, Suita, Osaka , 565-0871 , JAPAN
| | - Toshiyasu Oue
- a Department of Electronic Engineering , Graduate School of Engineering, Osaka University , 2-1 Yamada-Oka, Suita, Osaka , 565-0871 , JAPAN
| | - Yuki Shimoda
- a Department of Electronic Engineering , Graduate School of Engineering, Osaka University , 2-1 Yamada-Oka, Suita, Osaka , 565-0871 , JAPAN
| | - Yoshiaki Kawagishi
- a Department of Electronic Engineering , Graduate School of Engineering, Osaka University , 2-1 Yamada-Oka, Suita, Osaka , 565-0871 , JAPAN
| | - Keizo Nakayama
- a Department of Electronic Engineering , Graduate School of Engineering, Osaka University , 2-1 Yamada-Oka, Suita, Osaka , 565-0871 , JAPAN
| | - Serguei Yablonskii
- a Department of Electronic Engineering , Graduate School of Engineering, Osaka University , 2-1 Yamada-Oka, Suita, Osaka , 565-0871 , JAPAN
| | - Sadahito Uto
- b Department of Electrical Engineering , Osaka Institute of Technology , 5-16-1 Omiya, Asahi-ku, Osaka , 535-8585 , JAPAN
| | - Masanori Ozaki
- a Department of Electronic Engineering , Graduate School of Engineering, Osaka University , 2-1 Yamada-Oka, Suita, Osaka , 565-0871 , JAPAN
| |
Collapse
|
13
|
Orihara H, Naruse Y, Yagyu M, Fajar A, Uto S. Electric-field-temperature phase diagram of an antiferroelectric liquid crystal. Phys Rev E Stat Nonlin Soft Matter Phys 2005; 72:040701. [PMID: 16383353 DOI: 10.1103/physreve.72.040701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2005] [Indexed: 05/05/2023]
Abstract
We present a precise electric-field-temperature phase diagram of an antiferroelectric liquid crystal with a short pitch Sm-Calpha* phase. This was obtained by using a photoelastic modulator. A unique field-induced phase was found inside the Sm-Calpha* phase, which displayed low birefringence. Two tricritical points related to the phase were also observed. In addition, numerical calculations were made based on the discrete phenomenological model. The numerical results reproduced the experimental ones and it was clarified that the phase has a three-layer structure without spatial modulation.
Collapse
Affiliation(s)
- H Orihara
- Department of Applied Physics, Hokkaido University, Sapporo 060-8628, Japan
| | | | | | | | | |
Collapse
|
14
|
Matsuo A, Nakayama M, Sato S, Nakamoto T, Uto S, Hayashi S. (−)-Maalioxide and (+)-cyclocolorenone, enantiomeric sesquiterpenoids from the liverwort,Plagiochila acanthophylla subsp.japonica. ACTA ACUST UNITED AC 1974. [DOI: 10.1007/bf01921639] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|